package net.minecraft.entity.monster;

import java.util.Random;
import net.minecraft.block.Block;
import net.minecraft.entity.Entity;
import net.minecraft.entity.EntityLivingBase;
import net.minecraft.entity.EnumCreatureAttribute;
import net.minecraft.entity.IEntityLivingData;
import net.minecraft.entity.SharedMonsterAttributes;
import net.minecraft.entity.ai.EntityAIAttackOnCollide;
import net.minecraft.entity.ai.EntityAIHurtByTarget;
import net.minecraft.entity.ai.EntityAILeapAtTarget;
import net.minecraft.entity.ai.EntityAILookIdle;
import net.minecraft.entity.ai.EntityAINearestAttackableTarget;
import net.minecraft.entity.ai.EntityAISwimming;
import net.minecraft.entity.ai.EntityAIWander;
import net.minecraft.entity.ai.EntityAIWatchClosest;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.init.Items;
import net.minecraft.item.Item;
import net.minecraft.pathfinding.PathNavigate;
import net.minecraft.pathfinding.PathNavigateClimber;
import net.minecraft.potion.Potion;
import net.minecraft.potion.PotionEffect;
import net.minecraft.util.BlockPos;
import net.minecraft.world.DifficultyInstance;
import net.minecraft.world.EnumDifficulty;
import net.minecraft.world.World;

public class EntitySpider extends EntityMob {
	public EntitySpider(World worldIn) {
		super(worldIn);
		this.setSize(1.4F, 0.9F);
		this.tasks.addTask(1, new EntityAISwimming(this));
		this.tasks.addTask(3, new EntityAILeapAtTarget(this, 0.4F));
		this.tasks.addTask(4, new EntitySpider.AISpiderAttack(this, EntityPlayer.class));
		this.tasks.addTask(4, new EntitySpider.AISpiderAttack(this, EntityIronGolem.class));
		this.tasks.addTask(5, new EntityAIWander(this, 0.8D));
		this.tasks.addTask(6, new EntityAIWatchClosest(this, EntityPlayer.class, 8.0F));
		this.tasks.addTask(6, new EntityAILookIdle(this));
		this.targetTasks.addTask(1, new EntityAIHurtByTarget(this, false, new Class[0]));
		this.targetTasks.addTask(2, new EntitySpider.AISpiderTarget(this, EntityPlayer.class));
		this.targetTasks.addTask(3, new EntitySpider.AISpiderTarget(this, EntityIronGolem.class));
	}

	/**
	 * Returns the Y offset from the entity's position for any entity riding this
	 * one.
	 */
	public double getMountedYOffset() {
		return (double) (this.height * 0.5F);
	}

	/**
	 * Returns new PathNavigateGround instance
	 */
	protected PathNavigate getNewNavigator(World worldIn) {
		return new PathNavigateClimber(this, worldIn);
	}

	protected void entityInit() {
		super.entityInit();
		this.dataWatcher.addObject(16, new Byte((byte) 0));
	}

	/**
	 * Called to update the entity's position/logic.
	 */
	public void onUpdate() {
		super.onUpdate();

		if (!this.worldObj.isRemote) {
			this.setBesideClimbableBlock(this.isCollidedHorizontally);
		}
	}

	protected void applyEntityAttributes() {
		super.applyEntityAttributes();
		this.getEntityAttribute(SharedMonsterAttributes.maxHealth).setBaseValue(16.0D);
		this.getEntityAttribute(SharedMonsterAttributes.movementSpeed).setBaseValue(0.30000001192092896D);
	}

	/**
	 * Returns the sound this mob makes while it's alive.
	 */
	protected String getLivingSound() {
		return "mob.spider.say";
	}

	/**
	 * Returns the sound this mob makes when it is hurt.
	 */
	protected String getHurtSound() {
		return "mob.spider.say";
	}

	/**
	 * Returns the sound this mob makes on death.
	 */
	protected String getDeathSound() {
		return "mob.spider.death";
	}

	protected void playStepSound(BlockPos pos, Block blockIn) {
		this.playSound("mob.spider.step", 0.15F, 1.0F);
	}

	protected Item getDropItem() {
		return Items.string;
	}

	/**
	 * Drop 0-2 items of this living's type
	 */
	protected void dropFewItems(boolean p_70628_1_, int p_70628_2_) {
		super.dropFewItems(p_70628_1_, p_70628_2_);

		if (p_70628_1_ && (this.rand.nextInt(3) == 0 || this.rand.nextInt(1 + p_70628_2_) > 0)) {
			this.dropItem(Items.spider_eye, 1);
		}
	}

	/**
	 * returns true if this entity is by a ladder, false otherwise
	 */
	public boolean isOnLadder() {
		return this.isBesideClimbableBlock();
	}

	/**
	 * Sets the Entity inside a web block.
	 */
	public void setInWeb() {
	}

	/**
	 * Get this Entity's EnumCreatureAttribute
	 */
	public EnumCreatureAttribute getCreatureAttribute() {
		return EnumCreatureAttribute.ARTHROPOD;
	}

	public boolean isPotionApplicable(PotionEffect potioneffectIn) {
		return potioneffectIn.getPotionID() == Potion.poison.id ? false : super.isPotionApplicable(potioneffectIn);
	}

	/**
	 * Returns true if the WatchableObject (Byte) is 0x01 otherwise returns false.
	 * The WatchableObject is updated using setBesideClimableBlock.
	 */
	public boolean isBesideClimbableBlock() {
		return (this.dataWatcher.getWatchableObjectByte(16) & 1) != 0;
	}

	/**
	 * Updates the WatchableObject (Byte) created in entityInit(), setting it to
	 * 0x01 if par1 is true or 0x00 if it is false.
	 */
	public void setBesideClimbableBlock(boolean p_70839_1_) {
		byte b0 = this.dataWatcher.getWatchableObjectByte(16);

		if (p_70839_1_) {
			b0 = (byte) (b0 | 1);
		} else {
			b0 = (byte) (b0 & -2);
		}

		this.dataWatcher.updateObject(16, Byte.valueOf(b0));
	}

	/**
	 * Called only once on an entity when first time spawned, via egg, mob spawner,
	 * natural spawning etc, but not called when entity is reloaded from nbt. Mainly
	 * used for initializing attributes and inventory
	 */
	public IEntityLivingData onInitialSpawn(DifficultyInstance difficulty, IEntityLivingData livingdata) {
		livingdata = super.onInitialSpawn(difficulty, livingdata);

		if (this.worldObj.rand.nextInt(100) == 0) {
			EntitySkeleton entityskeleton = new EntitySkeleton(this.worldObj);
			entityskeleton.setLocationAndAngles(this.posX, this.posY, this.posZ, this.rotationYaw, 0.0F);
			entityskeleton.onInitialSpawn(difficulty, (IEntityLivingData) null);
			this.worldObj.spawnEntityInWorld(entityskeleton);
			entityskeleton.mountEntity(this);
		}

		if (livingdata == null) {
			livingdata = new EntitySpider.GroupData();

			if (this.worldObj.getDifficulty() == EnumDifficulty.HARD
					&& this.worldObj.rand.nextFloat() < 0.1F * difficulty.getClampedAdditionalDifficulty()) {
				((EntitySpider.GroupData) livingdata).func_111104_a(this.worldObj.rand);
			}
		}

		if (livingdata instanceof EntitySpider.GroupData) {
			int i = ((EntitySpider.GroupData) livingdata).potionEffectId;

			if (i > 0 && Potion.potionTypes[i] != null) {
				this.addPotionEffect(new PotionEffect(i, Integer.MAX_VALUE));
			}
		}

		return livingdata;
	}

	public float getEyeHeight() {
		return 0.65F;
	}

	static class AISpiderAttack extends EntityAIAttackOnCollide {
		public AISpiderAttack(EntitySpider p_i45819_1_, Class<? extends Entity> targetClass) {
			super(p_i45819_1_, targetClass, 1.0D, true);
		}

		public boolean continueExecuting() {
			float f = this.attacker.getBrightness(1.0F);

			if (f >= 0.5F && this.attacker.getRNG().nextInt(100) == 0) {
				this.attacker.setAttackTarget((EntityLivingBase) null);
				return false;
			} else {
				return super.continueExecuting();
			}
		}

		protected double func_179512_a(EntityLivingBase attackTarget) {
			return (double) (4.0F + attackTarget.width);
		}
	}

	static class AISpiderTarget<T extends EntityLivingBase> extends EntityAINearestAttackableTarget {
		public AISpiderTarget(EntitySpider p_i45818_1_, Class<T> classTarget) {
			super(p_i45818_1_, classTarget, true);
		}

		public boolean shouldExecute() {
			float f = this.taskOwner.getBrightness(1.0F);
			return f >= 0.5F ? false : super.shouldExecute();
		}
	}

	public static class GroupData implements IEntityLivingData {
		public int potionEffectId;

		public void func_111104_a(Random rand) {
			int i = rand.nextInt(5);

			if (i <= 1) {
				this.potionEffectId = Potion.moveSpeed.id;
			} else if (i <= 2) {
				this.potionEffectId = Potion.damageBoost.id;
			} else if (i <= 3) {
				this.potionEffectId = Potion.regeneration.id;
			} else if (i <= 4) {
				this.potionEffectId = Potion.invisibility.id;
			}
		}
	}
}
